Brake-shoe.



H. JONES.

I BRAKE SHOE. APPLIOATION FILED HAR- 9,1911- Patented June 13, 1911.

Inventor:

HARRY JONES, or SUEFEBN, NEW YORK, ASSIGNOB 'ro EDWARD H. FALLOWS, orNEW YORK, N. Y.

BRAKE-SHOE.

eoaiae.

H Specification of Letters Patent. Patented June 13,1911.

Application filed March a, 1911. Serial No. (313,218.

. My invention relates to brake shoes designed, for use uponrailway carsand of the type wherein a cast metal body portion ispro- Wide'd' witha'strengthening' and: stiffening 'baclc'o-f wrought metal embeddedin'thebody portioniof'the shoe, and the object thereof is to provide'animproved form of back stiff ening orstrengthening element which willimpart'greater strength to the shoe than has commonly been attained inthe use of prior forms 'of. back strengtheners; to provide a backstrengtliener which will hold the parts of the'shoe together should thesame become broken in'use more effectively than has commonly been thecase; to provide a back 'st-rengthener which may be readily and .cheaplymanufactured from a common form' of stock at a minimum of expense andeffort; andto'provide such other improvements in and relating to brakeshoes of the type referred to as,are hereinafter disclosed.

' With the objects above enumerated in view, my invention consists inthe improved brake 'shoe illustrated in the accompanying drawing,described in the following'specifi cation and particularly claimed inthe clauses of the concluding claim, and in such modifications thereofas will be obvious to those skilled in the art to which my inventionrelates.

In'the drawing accompanying and forming a partof this application;Figure 1 is a view showing my improved brake shoe in ,side elevation, apart of the body portion being broken away, to better show the stifffening member; Fig. 2 is a view showingthe shoe in' plan, this Viewshowing the rear surface or back of the shoe; Fig. is a Iview showing asection upon a transverse plane indicated by the line 3, 3, Fig. 2; Fig.

4; is a view similar to Fig. 2 but showing a modified form of backstiifening element; Fig. 5 is a view taken .upon a transverse planeindicated by the line 5, 5, Fig. 4; Fig.

v6 is a view similar to Fig. 2 but showing another form of backstiffening element; and Fig. 7 is a view showing a section upon atransverse" plane indicated 'bythe line 7, 7 'Fig. 6.

- In the drawing, 8 represents the body portron of the shoe, the samebeing formed preferably from castiron, the composition of 'which will besuch as to obtain maximum efficiency of the shoe when in use, and 9, '9are wrought metal back stifiening or strengthening members embedded inthe cast metal body portion and extending from the back of theshoe=about one third of the way through the same toward the front orwearing face of the shoe; said stiifening members being formedpreferably from a mild steel or wrought iron bar or ribbon bent ordoubled upon itself as shown, so as to extend a plurality oftimos'longthwise of the shoe, thus providing a plurality of separatesegments extending parallel with one another and arranged edgewisewithreference to the rear'surface or back of the shoe; the

said stiffening members being curved longitudinally so as to conform,approximately, with an arcof the same curvature as the wheel with whichthe shoe is to be used. '1 preferably provide two such strci'igtheniupmembers as are above described, the same being located side by side inthe rear portion of the finished shoe, as shown in "Figs, 2 and 3. Thesestiffening members are provided with openinqs 10 at their middleportions, the openings in the separate segments being in line when thestiffening member is'ben-t and caused to assume its final form; and 11is a lug through which the brake shoe may be secured to a brake head,said lug beingformed from wrought metal and being of inverted U formwith outwardly bent. portions 12 at its lower end which extend throughthe openings 10 aforesaid in one or more of the separate segments'of thestiffening members 9. r

In making my improved'brake shoe'the stiffening m embers 9 and thesecuring lug 11 are, properly assembled and placed in the mold in whichthe shoe is to be formed, after which the molten cast metal of the bodyportion is poured thereinto, whereupon theback strengthening members 9and the securing lug 11 become embedded in the body portion of the shoe;and, in order to more 'efi'ectively secure the said strengtheningmembers in place and unite the portions of the body.

flows, thus securing a strong and permanent union between thestrengthening member and the cast metal body portion of the shoe.

In Fig. 4, I have illustrated the use of a corrugated bar or ribbon ofwrought metal to form back stiffening members it, the same beingembedded in the cast metal body portion 15 of the shoe in the samemanner as hereinbefore disrlosedf This form of strengthening back whilesomewhat more difiicult to form than the form first disclosed, is insome respects to be. preferred, as

-metal bent, or doubled upon itself in a way similar to the barkstitl'ening members 9 and embedded in the body portion as the shoe ispoured, the ribbonaml body portion being simultaneously worn away as theshoe is used. In Figs. 6 and 7 l have illustrated a back stitl'eningmember 18 formed in a single pieee and extending throughout the entirearea of theshoe. The said member is eorrugated in a way ditl'eringsomewhat from the corrugated strip shown in Fig. l, and

' said member 18 is prorit'led with registering openings to receive theends 12 of the securing lugs 11, the same as in the forms of my brake.shoe hereinbefore described. This form of my improved brake shoe isprovided with an insert it) of any form as above referred to. v

The bark stitl'ening member 5) being arranged edgewise with reference tothe rear surface or back of the shoe imparts great strength thereto;and, because of the fact. that the bark stitl'ener extends into the bodyportion of the shoe much farther than has usually been the case withback stitlenersheretofore in use, a shoe is provided in which should thesame become broken in use the parts will be held togethermoreetl'eetively than if a comparatively thin stitl'ener, and one extendingbut slightly into the body portion of the shoe were used.

llaving thus described my invention, I claim and desire to secure byLetters Patent: 1. A brake shoe comprising a east. metal body portion; abark-emlwdded therein and comprising a "at strip of metal bent or -ofFebruary, A. D., 1911.

doubled upon itself and extending a plurality of tunes longitudinally ofthe sho and arranged edgewise with reference to the rear surface of theshoe; and means independent of said strip, and in engagement therewith,whereby'the brake shoe may be secured to a brake head.

2. A brake shoe comprising a cast metal I body portion; a back embeddedtherein and comprising a flat strip of metal bent or doubled upon itselfand extending a plural- V ity of times longitudinally of the shoe andarranged edgewise with reference to the'rear surface of the shoe; and alug independent 95 of said strip and in engagement therewl whereby thebrake shoe may be secured to a. brake head.

3. A brake shoe comprising a cast metal body portion; a wrought metalback em- '80 bedded therein and comprising a strip of metal bent ordoubled upon itself and extending a plurality of times longitudinally ofthe shoe and arranged cdgewise with reference to the rear surface of theshoe; said strip being provided with an opening; and a lug the innerportion of which is embedded in the body portion of the shoe and whichportion extends through the opening in said strip. '90

at. A brake shoe comprising a cast metal. body portion; a back embeddedtherein and comprising two strips of metal each bent or doubled uponitself and each extending apl-urality of times longitudinally ofth'eshoe,

said strips after having been bent as aforesaid being arranged side byside and edgewise with reference to. the rear surface of the shoe; and atug engaging both said strips and whereby the shoe may be secured to a1th brake head.

A brake shoe comprising a cast metal body portion; a back embeddedtherein and comprising two stri s of metal each bent or doubled uponitsel said strips being arranged side by side an edgewise with referenceto the rear surface of the shoe, each of said strlps being provided witha plurality of openings which in register after the strips are bent; anda la the inner portion of which is embedded the body of the shoe andwhich portionextends through the registering openings 1 aforesaid insaid strip. U H

Signed at Sufi'crn, in the county of Rock} land and State of New York,this 27th day HARRY J ONES.'

Witnesses EUGENE M. GREEN, (3. (l. MoRoAN,

and 'each extending a lo plurality of times longitudinally of the shoe:i

